NMR-Spectrometer AVANCE 400
AVANCE 400 Electronic parts of the AVANCE 400
  • upper left section: pulse programmer and receiver
  • lower left section: shim system
  • upper right section: MAS und temperature controller
  • lower right section: power amplifier

Special Features

  • "Ultra Shield (TM)" wide bore magnet at 9.4 T
  • resonance frequency of 1H: 400 MHz
  • 2 RF-channels to produce strong RF-pulses (more than 1000 W)
  • full digital signal generation (SGU) provides amplitude waveforms ("shaped pulses") and phases can be switched virtually without delay.
  • digital deuteron lock of the magnetic field
  • fast digitizer (up to 10 megasample per second) and broadband receiver (up to 5 MHz)
  • oversampling and digital filtering
  • (CP)MAS up to 7 kHz (7 mm rotor), up to 15 kHz (4 mm rotor)
  • the RF-pulses can be synchronized with the MAS rotation
  • double rotation (DOR) is possible
  • goniometer probehead 4.2 K to 300 K, with an additional goniometer axis (perpendicular to the first goniometer axis and the static magnetic field (+/- 10 adjustment))
  • gradient pulses using a current max. 3 x 10 A (x-, y-, z-direction) are possible